Yachimata, Chiba, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Yachimata, Chiba, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
28th Aug 2021
57AQILowest AQI recorded on
21st Aug 2023
8AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 43 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Yachimata, Chiba, Japan
AQI
Day
Night
.
4 AM4th Aug 2025
6 PM
3 AM5th Aug 2025
Day time
Avg. Highest Time
5PM4th Aug
94AQI
Avg. Lowest Time
7AM4th Aug
40AQI
Night time
Avg. Highest Time
7PM4th Aug
71AQI
Avg. Lowest Time
3AM5th Aug
40AQI
In the last 24 hours,
Yachimata's AQI reached its highest point of 94 at 5 PM during the Day, while the lowest point, 40, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Yachimata, Chiba, Japan
JulAug
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Jul 2025384 AMAQI
6th Jul 2025425 AMAQI
6th Jul 2025426 AMAQI
6th Jul 2025417 AMAQI
6th Jul 2025408 AMAQI
6th Jul 2025699 AMAQI
6th Jul 20259610 AMAQI
6th Jul 20259811 AMAQI
6th Jul 20258912 PMAQI
6th Jul 2025821 PMAQI
6th Jul 2025812 PMAQI
6th Jul 2025823 PMAQI
6th Jul 2025884 PMAQI
6th Jul 2025935 PMAQI
6th Jul 2025976 PMAQI
6th Jul 2025987 PMAQI
6th Jul 2025938 PMAQI
6th Jul 2025619 PMAQI
6th Jul 20256010 PMAQI
6th Jul 20256011 PMAQI
7th Jul 20256012 AMAQI
7th Jul 2025511 AMAQI
7th Jul 2025482 AMAQI
7th Jul 2025483 AMAQI
30°C26/34°C
7th Jul 2025484 AMAQI
7th Jul 2025535 AMAQI
7th Jul 2025526 AMAQI
7th Jul 2025527 AMAQI
7th Jul 2025538 AMAQI
7th Jul 2025879 AMAQI
7th Jul 202511810 AMAQI
7th Jul 202512311 AMAQI
7th Jul 202511212 PMAQI
7th Jul 2025881 PMAQI
7th Jul 2025922 PMAQI
7th Jul 2025893 PMAQI
7th Jul 2025904 PMAQI
7th Jul 2025905 PMAQI
7th Jul 2025966 PMAQI
7th Jul 2025997 PMAQI
7th Jul 2025908 PMAQI
7th Jul 2025719 PMAQI
7th Jul 20256810 PMAQI
7th Jul 20256911 PMAQI
8th Jul 20256612 AMAQI
8th Jul 2025581 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025563 AMAQI
29°C26/34°C
8th Jul 2025584 AMAQI
8th Jul 2025625 AMAQI
8th Jul 2025636 AMAQI
8th Jul 2025637 AMAQI
8th Jul 2025638 AMAQI
8th Jul 2025909 AMAQI
8th Jul 20259410 AMAQI
8th Jul 20259911 AMAQI
8th Jul 20259612 PMAQI
8th Jul 2025871 PMAQI
8th Jul 2025802 PMAQI
8th Jul 2025813 PMAQI
8th Jul 2025814 PMAQI
8th Jul 2025795 PMAQI
8th Jul 2025806 PMAQI
8th Jul 2025827 PMAQI
8th Jul 2025798 PMAQI
8th Jul 2025729 PMAQI
8th Jul 20257410 PMAQI
8th Jul 20257311 PMAQI
9th Jul 20257312 AMAQI
9th Jul 2025631 AMAQI
9th Jul 2025632 AMAQI
9th Jul 2025633 AMAQI
30°C26/34°C
9th Jul 2025644 AMAQI
9th Jul 2025685 AMAQI
9th Jul 2025696 AMAQI
9th Jul 2025687 AMAQI
9th Jul 2025688 AMAQI
9th Jul 2025819 AMAQI
9th Jul 20259210 AMAQI
9th Jul 20259611 AMAQI
9th Jul 20259812 PMAQI
9th Jul 2025981 PMAQI
9th Jul 2025982 PMAQI
9th Jul 2025933 PMAQI
9th Jul 2025784 PMAQI
9th Jul 2025665 PMAQI
9th Jul 2025596 PMAQI
9th Jul 2025577 PMAQI
9th Jul 2025598 PMAQI
9th Jul 2025639 PMAQI
9th Jul 20256410 PMAQI
9th Jul 20256311 PMAQI
10th Jul 20256312 AMAQI
10th Jul 2025681 AMAQI
10th Jul 2025682 AMAQI
10th Jul 2025683 AMAQI
30°C26/34°C
10th Jul 2025704 AMAQI
10th Jul 2025745 AMAQI
10th Jul 2025746 AMAQI
10th Jul 2025747 AMAQI
10th Jul 2025748 AMAQI
10th Jul 2025369 AMAQI
10th Jul 20252310 AMAQI
10th Jul 20253011 AMAQI
10th Jul 20253612 PMAQI
10th Jul 2025461 PMAQI
10th Jul 2025412 PMAQI
10th Jul 2025453 PMAQI
10th Jul 2025444 PMAQI
10th Jul 2025485 PMAQI
10th Jul 2025556 PMAQI
10th Jul 2025567 PMAQI
10th Jul 2025548 PMAQI
10th Jul 2025629 PMAQI
10th Jul 20256110 PMAQI
10th Jul 20256011 PMAQI
11th Jul 20256212 AMAQI
11th Jul 2025661 AMAQI
11th Jul 2025672 AMAQI
11th Jul 2025673 AMAQI
28°C22/33°C
11th Jul 2025674 AMAQI
11th Jul 2025645 AMAQI
11th Jul 2025646 AMAQI
11th Jul 2025647 AMAQI
11th Jul 2025638 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251710 AMAQI
11th Jul 20251611 AMAQI
11th Jul 20252312 PMAQI
11th Jul 2025391 PMAQI
11th Jul 2025402 PMAQI
11th Jul 2025423 PMAQI
11th Jul 2025414 PMAQI
11th Jul 2025425 PMAQI
11th Jul 2025466 PMAQI
11th Jul 2025447 PMAQI
11th Jul 2025488 PMAQI
11th Jul 2025589 PMAQI
11th Jul 20255810 PMAQI
11th Jul 20255811 PMAQI
12th Jul 20256012 AMAQI
12th Jul 2025621 AMAQI
12th Jul 2025632 AMAQI
12th Jul 2025633 AMAQI
23°C22/25°C
12th Jul 2025624 AMAQI
12th Jul 2025605 AMAQI
12th Jul 2025606 AMAQI
12th Jul 2025607 AMAQI
12th Jul 2025608 AMAQI
12th Jul 2025409 AMAQI
12th Jul 20253510 AMAQI
12th Jul 20254211 AMAQI
12th Jul 20254812 PMAQI
12th Jul 2025491 PMAQI
12th Jul 2025482 PMAQI
12th Jul 2025463 PMAQI
12th Jul 2025464 PMAQI
12th Jul 2025515 PMAQI
12th Jul 2025476 PMAQI
12th Jul 2025447 PMAQI
12th Jul 2025488 PMAQI
12th Jul 2025569 PMAQI
12th Jul 20255610 PMAQI
12th Jul 20255711 PMAQI
13th Jul 20255612 AMAQI
13th Jul 2025601 AMAQI
13th Jul 2025602 AMAQI
13th Jul 2025603 AMAQI
24°C21/27°C
13th Jul 2025604 AMAQI
13th Jul 2025585 AMAQI
13th Jul 2025586 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025588 AMAQI
13th Jul 2025479 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20253212 PMAQI
13th Jul 2025411 PMAQI
13th Jul 2025432 PMAQI
13th Jul 2025423 PMAQI
13th Jul 2025404 PMAQI
13th Jul 2025375 PMAQI
13th Jul 2025366 PMAQI
13th Jul 2025337 PMAQI
13th Jul 2025388 PMAQI
13th Jul 2025539 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025561 AMAQI
14th Jul 2025572 AMAQI
14th Jul 2025583 AMAQI
26°C23/30°C
14th Jul 2025574 AMAQI
14th Jul 2025565 AMAQI
14th Jul 2025566 AMAQI
14th Jul 2025567 AMAQI
14th Jul 2025568 AMAQI
14th Jul 2025279 AMAQI
14th Jul 20251810 AMAQI
14th Jul 20251611 AMAQI
14th Jul 20251712 PMAQI
14th Jul 2025241 PMAQI
14th Jul 2025292 PMAQI
14th Jul 2025263 PMAQI
14th Jul 2025294 PMAQI
14th Jul 2025285 PMAQI
14th Jul 2025316 PMAQI
14th Jul 2025347 PMAQI
14th Jul 2025368 PMAQI
14th Jul 2025519 PMAQI
14th Jul 20255110 PMAQI
14th Jul 20255111 PMAQI
15th Jul 20255112 AMAQI
15th Jul 2025531 AMAQI
15th Jul 2025542 AMAQI
15th Jul 2025553 AMAQI
26°C23/29°C
15th Jul 2025544 AMAQI
15th Jul 2025525 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025259 AMAQI
15th Jul 20251610 AMAQI
15th Jul 20251511 AMAQI
15th Jul 20251712 PMAQI
15th Jul 2025261 PMAQI
15th Jul 2025292 PMAQI
15th Jul 2025323 PMAQI
15th Jul 2025364 PMAQI
15th Jul 2025375 PMAQI
15th Jul 2025376 PMAQI
15th Jul 2025347 PMAQI
15th Jul 2025378 PMAQI
15th Jul 2025489 PMAQI
15th Jul 20254810 PMAQI
15th Jul 20254811 PMAQI
16th Jul 20254912 AMAQI
16th Jul 2025521 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI
26°C25/27°C
16th Jul 2025524 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025516 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025369 AMAQI
16th Jul 20252610 AMAQI
16th Jul 20252111 AMAQI
16th Jul 20252012 PMAQI
16th Jul 2025281 PMAQI
16th Jul 2025302 PMAQI
16th Jul 2025303 PMAQI
16th Jul 2025304 PMAQI
16th Jul 2025295 PMAQI
16th Jul 2025316 PMAQI
16th Jul 2025327 PMAQI
16th Jul 2025328 PMAQI
16th Jul 2025449 PMAQI
16th Jul 20254410 PMAQI
16th Jul 20254611 PMAQI
17th Jul 20254512 AMAQI
17th Jul 2025511 AMAQI
17th Jul 2025512 AMAQI
17th Jul 2025513 AMAQI
25°C25/27°C
17th Jul 2025514 AMAQI
17th Jul 2025485 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025498 AMAQI
17th Jul 2025309 AMAQI
17th Jul 20252610 AMAQI
17th Jul 20253011 AMAQI
17th Jul 20252912 PMAQI
17th Jul 2025331 PMAQI
17th Jul 2025332 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025354 PMAQI
17th Jul 2025345 PMAQI
17th Jul 2025346 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025368 PMAQI
17th Jul 2025439 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254311 PMAQI
18th Jul 20254212 AMAQI
18th Jul 2025481 AMAQI
18th Jul 2025472 AMAQI
18th Jul 2025483 AMAQI
28°C25/31°C
18th Jul 2025474 AMAQI
18th Jul 2025455 AMAQI
18th Jul 2025456 AMAQI
18th Jul 2025467 AMAQI
18th Jul 2025458 AMAQI
18th Jul 2025279 AMAQI
18th Jul 20252310 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252212 PMAQI
18th Jul 2025311 PMAQI
18th Jul 2025312 PMAQI
18th Jul 2025293 PMAQI
18th Jul 2025304 PMAQI
18th Jul 2025325 PMAQI
18th Jul 2025286 PMAQI
18th Jul 2025277 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025429 PMAQI
18th Jul 20254110 PMAQI
18th Jul 20254011 PMAQI
19th Jul 20254012 AMAQI
19th Jul 2025441 AMAQI
19th Jul 2025462 AMAQI
19th Jul 2025463 AMAQI
28°C25/32°C
19th Jul 2025444 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025436 AMAQI
19th Jul 2025437 AMAQI
19th Jul 2025438 AMAQI
19th Jul 2025239 AMAQI
19th Jul 20252010 AMAQI
19th Jul 20252211 AMAQI
19th Jul 20252112 PMAQI
19th Jul 2025281 PMAQI
19th Jul 2025252 PMAQI
19th Jul 2025223 PMAQI
19th Jul 2025234 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025206 PMAQI
19th Jul 2025227 PMAQI
19th Jul 2025248 PMAQI
19th Jul 2025329 PMAQI
19th Jul 20253110 PMAQI
19th Jul 20253111 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025442 AMAQI
20th Jul 2025443 AMAQI
28°C25/31°C
20th Jul 2025424 AMAQI
20th Jul 2025405 AMAQI
20th Jul 2025406 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252811 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025252 PMAQI
20th Jul 2025223 PMAQI
20th Jul 2025214 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025427 PMAQI
20th Jul 2025318 PMAQI
20th Jul 2025339 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253212 AMAQI
21st Jul 2025401 AMAQI
21st Jul 2025412 AMAQI
21st Jul 2025413 AMAQI
28°C25/33°C
21st Jul 2025404 AMAQI
21st Jul 2025385 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025377 AMAQI
21st Jul 2025378 AMAQI
21st Jul 2025299 AMAQI
21st Jul 20253410 AMAQI
21st Jul 20254011 AMAQI
21st Jul 20253812 PMAQI
21st Jul 2025511 PMAQI
21st Jul 2025422 PMAQI
21st Jul 2025473 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025425 PMAQI
21st Jul 2025286 PMAQI
21st Jul 2025327 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025329 PMAQI
21st Jul 20253110 PMAQI
21st Jul 20252811 PMAQI
22nd Jul 20252712 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025392 AMAQI
22nd Jul 2025383 AMAQI
29°C26/34°C
22nd Jul 2025384 AMAQI
22nd Jul 2025385 AMAQI
22nd Jul 2025386 AMAQI
22nd Jul 2025387 AMAQI
22nd Jul 2025388 AMAQI
22nd Jul 2025269 AMAQI
22nd Jul 20253010 AMAQI
22nd Jul 20254411 AMAQI
22nd Jul 20255012 PMAQI
22nd Jul 2025521 PMAQI
22nd Jul 2025472 PMAQI
22nd Jul 2025393 PMAQI
22nd Jul 2025394 PMAQI
22nd Jul 2025345 PMAQI
22nd Jul 2025236 PMAQI
22nd Jul 2025257 PMAQI
22nd Jul 2025208 PMAQI
22nd Jul 2025279 PMAQI
22nd Jul 20252710 PMAQI
22nd Jul 20252811 PMAQI
23rd Jul 20252512 AMAQI
23rd Jul 2025331 AMAQI
23rd Jul 2025382 AMAQI
23rd Jul 2025383 AMAQI
29°C26/35°C
23rd Jul 2025384 AMAQI
23rd Jul 2025385 AMAQI
23rd Jul 2025386 AMAQI
23rd Jul 2025387 AMAQI
23rd Jul 2025388 AMAQI
23rd Jul 2025329 AMAQI
23rd Jul 20252910 AMAQI
23rd Jul 20254111 AMAQI
23rd Jul 20255012 PMAQI
23rd Jul 2025501 PMAQI
23rd Jul 2025502 PMAQI
23rd Jul 2025443 PMAQI
23rd Jul 2025404 PMAQI
23rd Jul 2025395 PMAQI
23rd Jul 2025376 PMAQI
23rd Jul 2025347 PMAQI
23rd Jul 2025268 PMAQI
23rd Jul 2025289 PMAQI
23rd Jul 20252910 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20253112 AMAQI
24th Jul 2025381 AMAQI
24th Jul 2025362 AMAQI
24th Jul 2025373 AMAQI
29°C25/35°C
24th Jul 2025374 AMAQI
24th Jul 2025395 AMAQI
24th Jul 2025386 AMAQI
24th Jul 2025387 AMAQI
24th Jul 2025388 AMAQI
24th Jul 2025329 AMAQI
24th Jul 20253610 AMAQI
24th Jul 20254111 AMAQI
24th Jul 20255312 PMAQI
24th Jul 2025571 PMAQI
24th Jul 2025572 PMAQI
24th Jul 2025503 PMAQI
24th Jul 2025404 PMAQI
24th Jul 2025325 PMAQI
24th Jul 2025316 PMAQI
24th Jul 2025287 PMAQI
24th Jul 2025298 PMAQI
24th Jul 2025299 PMAQI
24th Jul 20252810 PMAQI
24th Jul 20252611 PMAQI
25th Jul 20252912 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025372 AMAQI
25th Jul 2025373 AMAQI
30°C25/36°C
25th Jul 2025384 AMAQI
25th Jul 2025405 AMAQI
25th Jul 2025406 AMAQI
25th Jul 2025417 AMAQI
25th Jul 2025408 AMAQI
25th Jul 2025319 AMAQI
25th Jul 20253810 AMAQI
25th Jul 20255211 AMAQI
25th Jul 20255212 PMAQI
25th Jul 2025511 PMAQI
25th Jul 2025442 PMAQI
25th Jul 2025333 PMAQI
25th Jul 2025284 PMAQI
25th Jul 2025265 PMAQI
25th Jul 2025256 PMAQI
25th Jul 2025247 PMAQI
25th Jul 2025288 PMAQI
25th Jul 2025309 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253011 PMAQI
26th Jul 20253012 AMAQI
26th Jul 2025381 AMAQI
26th Jul 2025372 AMAQI
26th Jul 2025383 AMAQI
30°C26/35°C
26th Jul 2025384 AMAQI
26th Jul 2025395 AMAQI
26th Jul 2025396 AMAQI
26th Jul 2025387 AMAQI
26th Jul 2025388 AMAQI
26th Jul 2025309 AMAQI
26th Jul 20253010 AMAQI
26th Jul 20253311 AMAQI
26th Jul 20253612 PMAQI
26th Jul 2025391 PMAQI
26th Jul 2025432 PMAQI
26th Jul 2025353 PMAQI
26th Jul 2025304 PMAQI
26th Jul 2025265 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025237 PMAQI
26th Jul 2025248 PMAQI
26th Jul 2025319 PMAQI
26th Jul 20253110 PMAQI
26th Jul 20253111 PMAQI
27th Jul 20253012 AMAQI
27th Jul 2025361 AMAQI
27th Jul 2025382 AMAQI
27th Jul 2025373 AMAQI
30°C26/35°C
27th Jul 2025374 AMAQI
27th Jul 2025375 AMAQI
27th Jul 2025366 AMAQI
27th Jul 2025367 AMAQI
27th Jul 2025378 AMAQI
27th Jul 2025319 AMAQI
27th Jul 20252610 AMAQI
27th Jul 20253011 AMAQI
27th Jul 20253012 PMAQI
27th Jul 2025311 PMAQI
27th Jul 2025322 PMAQI
27th Jul 2025303 PMAQI
27th Jul 2025304 PMAQI
27th Jul 2025305 PMAQI
27th Jul 2025266 PMAQI
27th Jul 2025277 PMAQI
27th Jul 2025208 PMAQI
27th Jul 2025289 PMAQI
27th Jul 20252910 PMAQI
27th Jul 20253011 PMAQI
28th Jul 20253012 AMAQI
28th Jul 2025341 AMAQI
28th Jul 2025362 AMAQI
28th Jul 2025373 AMAQI
30°C26/35°C
28th Jul 2025374 AMAQI
28th Jul 2025345 AMAQI
28th Jul 2025366 AMAQI
28th Jul 2025357 AMAQI
28th Jul 2025348 AMAQI
28th Jul 2025319 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20253711 AMAQI
28th Jul 20254212 PMAQI
28th Jul 2025451 PMAQI
28th Jul 2025472 PMAQI
28th Jul 2025423 PMAQI
28th Jul 2025384 PMAQI
28th Jul 2025395 PMAQI
28th Jul 2025346 PMAQI
28th Jul 2025297 PMAQI
28th Jul 2025308 PMAQI
28th Jul 2025339 PMAQI
28th Jul 20253210 PMAQI
28th Jul 20253111 PMAQI
29th Jul 20253112 AMAQI
29th Jul 2025341 AMAQI
29th Jul 2025332 AMAQI
29th Jul 2025353 AMAQI
30°C26/36°C
29th Jul 2025364 AMAQI
29th Jul 2025375 AMAQI
29th Jul 2025366 AMAQI
29th Jul 2025367 AMAQI
29th Jul 2025368 AMAQI
29th Jul 2025269 AMAQI
29th Jul 20252610 AMAQI
29th Jul 20253011 AMAQI
29th Jul 20253912 PMAQI
29th Jul 2025421 PMAQI
29th Jul 2025412 PMAQI
29th Jul 2025303 PMAQI
29th Jul 2025244 PMAQI
29th Jul 2025205 PMAQI
29th Jul 2025186 PMAQI
29th Jul 2025177 PMAQI
29th Jul 2025188 PMAQI
29th Jul 2025269 PMAQI
29th Jul 20252910 PMAQI
29th Jul 20252811 PMAQI
30th Jul 20252912 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025342 AMAQI
30th Jul 2025343 AMAQI
29°C25/34°C
30th Jul 2025344 AMAQI
30th Jul 2025345 AMAQI
30th Jul 2025356 AMAQI
30th Jul 2025357 AMAQI
30th Jul 2025348 AMAQI
30th Jul 2025259 AMAQI
30th Jul 20252210 AMAQI
30th Jul 20252211 AMAQI
30th Jul 20252312 PMAQI
30th Jul 2025241 PMAQI
30th Jul 2025242 PMAQI
30th Jul 2025273 PMAQI
30th Jul 2025384 PMAQI
30th Jul 2025395 PMAQI
30th Jul 2025386 PMAQI
30th Jul 2025377 PMAQI
30th Jul 2025368 PMAQI
30th Jul 2025389 PMAQI
30th Jul 20253810 PMAQI
30th Jul 20253611 PMAQI
31st Jul 20253412 AMAQI
31st Jul 2025341 AMAQI
31st Jul 2025332 AMAQI
31st Jul 2025323 AMAQI
28°C24/33°C
31st Jul 2025324 AMAQI
31st Jul 2025325 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025327 AMAQI
31st Jul 2025328 AMAQI
31st Jul 2025329 AMAQI
31st Jul 20253210 AMAQI
31st Jul 20253411 AMAQI
31st Jul 20253212 PMAQI
31st Jul 2025321 PMAQI
31st Jul 2025292 PMAQI
31st Jul 2025253 PMAQI
31st Jul 2025274 PMAQI
31st Jul 2025325 PMAQI
31st Jul 2025376 PMAQI
31st Jul 2025287 PMAQI
31st Jul 2025308 PMAQI
31st Jul 2025329 PMAQI
31st Jul 20253110 PMAQI
31st Jul 20253011 PMAQI
1st Aug 20253012 AMAQI
1st Aug 2025351 AMAQI
1st Aug 2025342 AMAQI
1st Aug 2025383 AMAQI
27°C24/32°C
1st Aug 2025364 AMAQI
1st Aug 2025345 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025347 AMAQI
1st Aug 2025368 AMAQI
1st Aug 2025379 AMAQI
1st Aug 20252610 AMAQI
1st Aug 20254011 AMAQI
1st Aug 20254812 PMAQI
1st Aug 2025481 PMAQI
1st Aug 2025312 PMAQI
1st Aug 2025253 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025285 PMAQI
1st Aug 2025376 PMAQI
1st Aug 2025267 PMAQI
1st Aug 2025288 PMAQI
1st Aug 2025299 PMAQI
1st Aug 20253210 PMAQI
1st Aug 20252911 PMAQI
2nd Aug 20253012 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025373 AMAQI
27°C24/30°C
2nd Aug 2025374 AMAQI
2nd Aug 2025375 AMAQI
2nd Aug 2025386 AMAQI
2nd Aug 2025377 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025319 AMAQI
2nd Aug 20253410 AMAQI
2nd Aug 20254411 AMAQI
2nd Aug 20253012 PMAQI
2nd Aug 2025451 PMAQI
2nd Aug 2025572 PMAQI
2nd Aug 2025543 PMAQI
2nd Aug 2025474 PMAQI
2nd Aug 2025505 PMAQI
2nd Aug 2025516 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025408 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253510 PMAQI
2nd Aug 20253811 PMAQI
3rd Aug 20253212 AMAQI
3rd Aug 2025341 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025363 AMAQI
30°C25/35°C
3rd Aug 2025384 AMAQI
3rd Aug 2025395 AMAQI
3rd Aug 2025386 AMAQI
3rd Aug 2025397 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025429 AMAQI
3rd Aug 20254910 AMAQI
3rd Aug 20254611 AMAQI
3rd Aug 20255612 PMAQI
3rd Aug 2025521 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025504 PMAQI
3rd Aug 2025485 PMAQI
3rd Aug 2025536 PMAQI
3rd Aug 2025487 PMAQI
3rd Aug 2025448 PMAQI
3rd Aug 2025399 PMAQI
3rd Aug 20254410 PMAQI
3rd Aug 20253711 PMAQI
4th Aug 20253712 AMAQI
4th Aug 2025371 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI
30°C26/34°C
4th Aug 2025404 AMAQI
4th Aug 2025425 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025407 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025609 AMAQI
4th Aug 20257110 AMAQI
4th Aug 20257711 AMAQI
4th Aug 20258112 PMAQI
4th Aug 2025921 PMAQI
4th Aug 2025902 PMAQI
4th Aug 2025853 PMAQI
4th Aug 2025894 PMAQI
4th Aug 2025945 PMAQI
4th Aug 2025846 PMAQI
4th Aug 2025717 PMAQI
4th Aug 2025648 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20254611 PMAQI
5th Aug 20254812 AMAQI
5th Aug 2025421 AMAQI
5th Aug 2025402 AMAQI
5th Aug 2025403 AMAQI
30°C27/35°C
5th Aug 2025504 AMAQI
4 AM5th Aug 2025515 AMAQI
5th Aug 2025486 AMAQI
5th Aug 2025487 AMAQI
5th Aug 2025528 AMAQI
5th Aug 2025559 AMAQI
5th Aug 20255710 AMAQI
11 AM
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
1 PM - 2 PM
48AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
9 AM - 10 AM
40AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 2 PM (Avg. 48), while the lowest AQI was between 9 AM to 10 AM (Avg. 40).
Night time
Avg. Highest Time
1 AM - 3 AM
45AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
7 PM - 8 PM
41AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 3 AM (Avg. 45), while the lowest AQI was between 7 PM to 8 PM (Avg. 41).
2025 Days Vs Air Quality
Yachimata, Chiba, Japan
2025
90%
194
10%
21
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
194 DaysModerate
21 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Yachimata, Chiba, Japan
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
34AQI
34AQI
2nd January 2025
33AQI
33AQI
3rd January 2025
25AQI
25AQI
4th January 2025
31AQI
31AQI
5th January 2025
36AQI
36AQI
6th January 2025
57AQI
57AQI
7th January 2025
33AQI
33AQI
8th January 2025
38AQI
38AQI
9th January 2025
29AQI
29AQI
10th January 2025
29AQI
29AQI
11th January 2025
34AQI
34AQI
12th January 2025
34AQI
34AQI
13th January 2025
30AQI
30AQI
14th January 2025
39AQI
39AQI
15th January 2025
38AQI
38AQI
16th January 2025
37AQI
37AQI
17th January 2025
31AQI
31AQI
18th January 2025
37AQI
37AQI
19th January 2025
54AQI
54AQI
20th January 2025
41AQI
41AQI
21st January 2025
43AQI
43AQI
22nd January 2025
42AQI
42AQI
23rd January 2025
50AQI
50AQI
24th January 2025
43AQI
43AQI
25th January 2025
40AQI
40AQI
26th January 2025
35AQI
35AQI
27th January 2025
35AQI
35AQI
28th January 2025
38AQI
38AQI
29th January 2025
30AQI
30AQI
30th January 2025
32AQI
32AQI
31st January 2025
30AQI
30AQI
1st February 2025
40AQI
40AQI
2nd February 2025
31AQI
31AQI
3rd February 2025
40AQI
40AQI
4th February 2025
32AQI
32AQI
5th February 2025
33AQI
33AQI
6th February 2025
29AQI
29AQI
7th February 2025
30AQI
30AQI
8th February 2025
32AQI
32AQI
9th February 2025
30AQI
30AQI
10th February 2025
32AQI
32AQI
11th February 2025
32AQI
32AQI
12th February 2025
32AQI
32AQI
13th February 2025
64AQI
64AQI
14th February 2025
30AQI
30AQI
15th February 2025
62AQI
62AQI
16th February 2025
39AQI
39AQI
17th February 2025
46AQI
46AQI
18th February 2025
32AQI
32AQI
19th February 2025
36AQI
36AQI
20th February 2025
30AQI
30AQI
21st February 2025
31AQI
31AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
33AQI
33AQI
24th February 2025
33AQI
33AQI
25th February 2025
34AQI
34AQI
26th February 2025
35AQI
35AQI
27th February 2025
40AQI
40AQI
28th February 2025
53AQI
53AQI
1st March 2025
46AQI
46AQI
2nd March 2025
64AQI
64AQI
3rd March 2025
39AQI
39AQI
4th March 2025
40AQI
40AQI
5th March 2025
26AQI
26AQI
6th March 2025
31AQI
31AQI
7th March 2025
31AQI
31AQI
8th March 2025
32AQI
32AQI
9th March 2025
32AQI
32AQI
10th March 2025
35AQI
35AQI
11th March 2025
36AQI
36AQI
12th March 2025
39AQI
39AQI
13th March 2025
40AQI
40AQI
14th March 2025
39AQI
39AQI
15th March 2025
35AQI
35AQI
16th March 2025
24AQI
24AQI
17th March 2025
20AQI
20AQI
18th March 2025
23AQI
23AQI
19th March 2025
18AQI
18AQI
20th March 2025
24AQI
24AQI
21st March 2025
39AQI
39AQI
22nd March 2025
49AQI
49AQI
23rd March 2025
54AQI
54AQI
24th March 2025
51AQI
51AQI
25th March 2025
69AQI
69AQI
26th March 2025
83AQI
83AQI
27th March 2025
72AQI
72AQI
28th March 2025
46AQI
46AQI
29th March 2025
39AQI
39AQI
30th March 2025
41AQI
41AQI
31st March 2025
34AQI
34AQI
1st April 2025
28AQI
28AQI
2nd April 2025
23AQI
23AQI
3rd April 2025
20AQI
20AQI
4th April 2025
21AQI
21AQI
5th April 2025
23AQI
23AQI
6th April 2025
23AQI
23AQI
7th April 2025
31AQI
31AQI
8th April 2025
35AQI
35AQI
9th April 2025
28AQI
28AQI
10th April 2025
46AQI
46AQI
11th April 2025
41AQI
41AQI
12th April 2025
35AQI
35AQI
13th April 2025
28AQI
28AQI
14th April 2025
39AQI
39AQI
15th April 2025
28AQI
28AQI
16th April 2025
34AQI
34AQI
17th April 2025
44AQI
44AQI
18th April 2025
50AQI
50AQI
19th April 2025
60AQI
60AQI
20th April 2025
47AQI
47AQI
21st April 2025
45AQI
45AQI
22nd April 2025
42AQI
42AQI
23rd April 2025
28AQI
28AQI
24th April 2025
37AQI
37AQI
25th April 2025
37AQI
37AQI
26th April 2025
44AQI
44AQI
27th April 2025
46AQI
46AQI
28th April 2025
41AQI
41AQI
29th April 2025
35AQI
35AQI
30th April 2025
43AQI
43AQI
1st May 2025
35AQI
35AQI
2nd May 2025
29AQI
29AQI
3rd May 2025
30AQI
30AQI
4th May 2025
37AQI
37AQI
5th May 2025
31AQI
31AQI
6th May 2025
25AQI
25AQI
7th May 2025
23AQI
23AQI
8th May 2025
25AQI
25AQI
9th May 2025
27AQI
27AQI
10th May 2025
20AQI
20AQI
11th May 2025
29AQI
29AQI
12th May 2025
26AQI
26AQI
13th May 2025
36AQI
36AQI
14th May 2025
27AQI
27AQI
15th May 2025
35AQI
35AQI
16th May 2025
38AQI
38AQI
17th May 2025
25AQI
25AQI
18th May 2025
43AQI
43AQI
19th May 2025
41AQI
41AQI
20th May 2025
62AQI
62AQI
21st May 2025
41AQI
41AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
40AQI
40AQI
24th May 2025
38AQI
38AQI
25th May 2025
31AQI
31AQI
26th May 2025
26AQI
26AQI
27th May 2025
26AQI
26AQI
28th May 2025
23AQI
23AQI
29th May 2025
25AQI
25AQI
30th May 2025
21AQI
21AQI
31st May 2025
16AQI
16AQI
1st June 2025
20AQI
20AQI
2nd June 2025
24AQI
24AQI
3rd June 2025
27AQI
27AQI
4th June 2025
31AQI
31AQI
5th June 2025
36AQI
36AQI
6th June 2025
43AQI
43AQI
7th June 2025
47AQI
47AQI
8th June 2025
53AQI
53AQI
9th June 2025
38AQI
38AQI
10th June 2025
29AQI
29AQI
11th June 2025
23AQI
23AQI
12th June 2025
30AQI
30AQI
13th June 2025
30AQI
30AQI
14th June 2025
29AQI
29AQI
15th June 2025
33AQI
33AQI
16th June 2025
34AQI
34AQI
17th June 2025
45AQI
45AQI
18th June 2025
41AQI
41AQI
19th June 2025
39AQI
39AQI
20th June 2025
33AQI
33AQI
21st June 2025
29AQI
29AQI
22nd June 2025
20AQI
20AQI
23rd June 2025
23AQI
23AQI
24th June 2025
21AQI
21AQI
25th June 2025
22AQI
22AQI
26th June 2025
21AQI
21AQI
27th June 2025
28AQI
28AQI
28th June 2025
28AQI
28AQI
29th June 2025
31AQI
31AQI
30th June 2025
36AQI
36AQI
1st July 2025
36AQI
36AQI
2nd July 2025
40AQI
40AQI
3rd July 2025
41AQI
41AQI
4th July 2025
39AQI
39AQI
5th July 2025
47AQI
47AQI
6th July 2025
64AQI
64AQI
7th July 2025
73AQI
73AQI
8th July 2025
73AQI
73AQI
9th July 2025
72AQI
72AQI
10th July 2025
58AQI
58AQI
11th July 2025
52AQI
52AQI
12th July 2025
54AQI
54AQI
13th July 2025
50AQI
50AQI
14th July 2025
44AQI
44AQI
15th July 2025
43AQI
43AQI
16th July 2025
41AQI
41AQI
17th July 2025
41AQI
41AQI
18th July 2025
38AQI
38AQI
19th July 2025
32AQI
32AQI
20th July 2025
33AQI
33AQI
21st July 2025
37AQI
37AQI
22nd July 2025
34AQI
34AQI
23rd July 2025
36AQI
36AQI
24th July 2025
37AQI
37AQI
25th July 2025
35AQI
35AQI
26th July 2025
33AQI
33AQI
27th July 2025
31AQI
31AQI
28th July 2025
35AQI
35AQI
29th July 2025
30AQI
30AQI
30th July 2025
33AQI
33AQI
31st July 2025
32AQI
32AQI
1st August 2025
33AQI
33AQI
2nd August 2025
40AQI
40AQI
3rd August 2025
43AQI
43AQI
37AQI
37AQI
40AQI
36AQI
31AQI
31AQI
43AQI
39AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202537AQI
29
2
25
3
25
6
29
1
30
1
29
1
24
7
3
194
21
Highest AQI recorded in
July43AQI
Lowest AQI recorded in
May31AQI
202436AQI
24
7
26
3
23
8
25
5
27
4
28
2
19
12
31
27
3
31
29
1
31
321
45
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
August26AQI
202337AQI
23
8
22
6
27
4
25
5
29
2
24
6
27
4
31
29
1
31
21
8
20
11
309
55
Highest AQI recorded in
December48AQI
Lowest AQI recorded in
August24AQI
202238AQI
23
7
15
6
24
7
14
4
26
5
25
5
17
4
1
27
1
27
4
21
9
25
6
245
58
Highest AQI recorded in
January43AQI
Lowest AQI recorded in
August22AQI
202137AQI
18
11
1
21
7
24
6
1
25
5
28
3
27
3
28
3
30
1
30
29
2
23
7
17
14
300
62
2
Highest AQI recorded in
January48AQI
Lowest AQI recorded in
August27AQI
202034AQI
10
3
19
2
18
24
6
30
1
22
9
19
29
2
21
9
21
9
1
213
41
1
Highest AQI recorded in
December44AQI
Lowest AQI recorded in
September24AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
38AQILeast Polluted Year Recorded
2020(Avg.)
34AQIYachimata's annual 2025 AQI (37) shows an average percentage change of 0.5% (worsened AQI) compared to previous years: 2020 (34), 2021 (37), 2022 (38), 2023 (37), 2024 (36).
